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• W3130492912 abstract "The availability of large spatial data geocoded at accurate locations has fueled a growing interest in spatial modeling and analysis of point processes. The proposed research is motivated by the intensity estimation problem for large spatial point patterns on complex domains, where many existing spatial point process models suffer from the problems of leakage and computation. We propose an efficient intensity estimation algorithm to estimate the spatially varying intensity function and to study the varying relationship between intensity and explanatory variables on complex domains. The method is built upon a graph regularization technique and hence can be flexibly applied to point patterns on complex domains such as regions with irregular boundaries and holes, or linear networks. An efficient proximal gradient optimization algorithm is proposed to handle large spatial point patterns. We also derive the asymptotic error bound for the proposed estimator. Numerical studies are conducted to illustrate the performance of the method. Finally, We apply the method to study and visualize the intensity patterns of the accidents on the Western Australia road network, and the spatial variations in the effects of income, lights condition, and population density on the Toronto homicides occurrences." @default.
• W3130492912 created "2021-03-01" @default.
• W3130492912 creator A5025145194 @default.
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• W3130492912 date "2021-02-22" @default.
• W3130492912 modified "2023-09-27" @default.
• W3130492912 title "Fused Spatial Point Process IntensityEstimation on Complex Domains" @default.
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• W3130492912 hasPublicationYear "2021" @default.
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